Resilient wheel.



R. B. SHOOK.

RESIL'IENT WHEEL.

APPLICATION FILED MAR. 6, 1915.

Patented July 13, 1915.

ROY B. SHOCK, F DAYTON, OHIO.

nnsrLInNT WHEEL.

inmensa.

Specification of Letters Patent.

Patented July 13, 1915.

Application led March 6, 1915. Serial No. 12,499.

T0 all whom t may concern:

Be it known that I, ROY B. SHOOK, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Resilient Wheels; and I do declare the following to be a full, clear, and

Mact description of theinvention, such as particularly to wheels of a resilient character.-

The object of the invention is to'provide a resilient wheel of comparatively few parts and which has the element of resiliency to a desirable extent and avoids the liability to damage which is so common to pneumatic wheels.

Figure 1 is an elevation of a portion of the wheel a part of which is shown in section; gig. 2 is a cross-section on the line w-a of In a detail description of my invention, similar reference characters indicate corresponding parts both in the description and drawings. l

Well lmown parts of the wheel structure have been omitted from the drawings such, l for. example, as the wheel hub, spokes, etc. The present improvements' relate solely to the wheel tire; it has, therefore, been deemed unnecessary to illustrate other parts.

Beginning with the 'felly or wheel rim 1, there lis nothing special or uncommon in the structure of this, The inner holding rim 2, however, departs from the-well known forms of clencher rims in thatl its margins 3 are crimped to provide two inner curved shoulders 4 which run throughout the circumference of the said rim on both sides. The said rim 2 is secured to the felly 1 in the usual manner. The tire of the wheel is placed in this annular channel rim 2 and consists of an annular .resilient member-formed of a coil spring 5 the ends of which-are united to form a continuous ring. Owing to the F spring from which the tire is formed having certain structural features, which will be presently described, the spring is irregular This invention relates to new and useful improvements 1n vehicle wheels land more Referring to the accompanying drawings,

in cross-section. This is so because thereonvolutions do not form complete circles. The convolutions .of the springy areuniform throughout and the gage of wire from which the spring is made is suitable for the character of the wheel. For eXample,'in truck wheels or wheels for heavy draft vehicles it would necessarily be lof larger gage of wire than that requiredV for wheels of lighter draft. On opposite sides of the springv tire thus formed it is provided with two annular channels 6 ,and 7 between which annular bulged portions 8 lie. The inner annular channels 7 receive the annular shoulders 4 on the margins of the rim 2. The spring 5 is thus held securely within the channel rim 2, it being understood that the shoulders and recesses 4: and 7 extend entirely around the tire. i

The outer casing or tread of the wheel o that portion which incloses the outer circumference of the spring tire 5 is constructed in one homogeneous part the elements of which consist of a curved annular steel channel ring 13 the margins 9 of which are crimped and enter the outer circumferential channels 6 of the spring tire. United to the inner surface of the member 13'is a sheathy ing 10 of suitable metal such, for example, as babbitt, and to the outer side of said member 13 a covering 'is united consisting ofA a suitable .fabric 11 constructed of a combination of rubber and canvas or other material which is usually employed for the outer casings of wheels. A'The crimped marnels 6y and the said casing thus becomes .firmly united to the spring tire. The inner surface o f said casing, which, as before stated, is the metal'portion 10, is provided with a series of transverse grooves- 12 throughout its circumference which'receive the outer portions of the convolutions of the spring tire and serve to maintain said spring tire. and the casing in suitable connection throughout the circumference of the wheel. The part of the inner metal portlon 10.0f the casing which lies between the conrim 2 andthe other casing such abutments gins 9- of the casing fit snugly in the chanloo being instrumental in contributing'to the maintenance. of the spring tire and outer casing in position.

aving describedv my invention, ll claim- 1. A resilient vehlcie Wheel comprising an endless irregular coil spi-nigga channel rim inclosing the inner circumference thereof, the margins of said rim having a holding contact with opposite sides of said spring, and a casing inclosing the outer circumference of said spring and the margins of Which have a holding contact With'the opposite sides of said spring, substantially as described. A

2. A Wheel of the character specified, comprising an endless coil spring opposite sides of which have annular osets, a channel rim inclosing the inner circumference of said spring and the margins of which engage said spring below the annular oifsets, and a casing inclosing the outer circumference of said spring and themargins of which engage said most series of indentations and whereby said casing is united to said spring, substantialfry/ as described.

ln testimony whereof l aiix .my signa- 40 ture, in presence of tvvo Witnesses.

- RY B. SHK. Witnesses:

R; J. MCCA'MY, M; SmBLEn. 

